Exceptional low-light performance and high sensitivity to light across the entire solar spectrum. 25-Year limited warranty on power output and performance. 5-Year limited warranty on materials and workmanship. Sealed, waterproof, multi-functional junction box gives high level of safety. High performance bypass diodes minimize the power drop caused by shade. Advanced EVA (Ethylene Vinyl Acetate) encapsulation system with triple-layer back sheet meets the most stringent safety requirements for high-voltage operation. A sturdy, anodized aluminium frame allows modules to be easily roof-mounted with a variety of standard mounting systems. Highest quality, high-transmission tempered glass provides enhanced stiffness and impact resistance. High power models with pre wired quick-connect system with MC4 (PV-ST01) connectors. Low voltage-temperature coefficient enhances high-temperature operation.